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Priority claimed from DE3910204Aexternal-prioritypatent/DE3910204A1/de
Priority claimed from DE8914503Uexternal-prioritypatent/DE8914503U1/de
Application filed by Helmut OrtolffiledCriticalHelmut Ortolf
Application grantedgrantedCritical
Publication of ATE99019T1publicationCriticalpatent/ATE99019T1/de